While creating a scheduler window using the DBMS_SCHEDULER package， a user logged in as DBMGR gets the error message insufficient privileges.  Which two commands would you use to resolve this error？（）

• A、GRANT dba TO dbmgr;
• B、GRANT connect TO dbmgr;
• C、GRANT resource TO dbmgr;
• D、GRANT hs_admin_role TO dbmgr;
• E、GRANT manage scheduler TO dbmgr;